Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         [crown] Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
           Domain Bacteria Woese et al. 1990 [paraphyletic?]
             Superphylum Terrabacteria Battistuzzi et al. 2004
               Phylum "Actinobacteria" Garrity and Holt 2001
                 Class Actinobacteriaᵀ Stackebrandt et al. 1997
                   Order Actinomycetalesᵀ Buchanan 1917 (Approved Lists 1980)
                     Suborder Streptosporangineae Ward-Rainey et al. 1997
                       1 Genus Allonocardiopsis Du et al. 2013, incertae sedis [monotypic]
                       2 Genus Sinosporangium Zhang et al. 2011, incertae sedis
                       3 Family Streptosporangiaceaeᵀ Goodfellow et al. 1990
                       4 Family Nocardiopsaceae Rainey et al. 1996
                       5 Family Thermomonosporaceae Rainey et al. 1997